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Ground Water Monitoring Report - First Quarter 2001 <br /> I PLAZA LIQUORS II <br /> 2420 West Turner Road, Lodi, California <br /> IZ.O. INTRODUCTION <br /> I At the request of Mr Robert McCarty,Advanced GeoEnvironmental, Inc (AGE) has prepared this <br /> quarterly report for the property located at 2420 West Turner Road, Lodi, California The site and <br /> the surrounding area are illustrated in Figure 1 On-site structures and monitoring well locations are <br /> I illustrated on Figure 2 Background information and ground water monitoring procedures for the site <br /> are summarized in AGE's work plan titled Preliminary Site Assessment Work Plan, dated 19 <br /> November 1999 The objective of the work was to monitor dissolved petroleum hydrocarbon <br /> concentrations in ground water and to characterize ground water flow direction and gradient on the <br /> site <br /> 2.0. PROCEDURES <br /> Field work and report preparation are in accordance with guidelines established by the San Joaquin <br /> County Public Health Services - Environmental Health Division (PHS-EHD) and by the Central <br /> Valley Regional Water Quality Control Board (CVRWQCB) for sampling ground water monitoring <br /> wells and investigation of underground storage tank (UST) sites <br /> I2 1 MONITORING WELL PURGE PROCEDURES <br /> I On 03 January 2001, ground water monitoring and sampling was performed on wells MW 1 through <br /> MW4 Prior to sampling, the depth to ground water was measured from the top of each well casing <br /> to the nearest 0 01-foot utilizing a Sohnst water level meter Ground water elevations in each well <br /> I were calculated by subtracting the measured depth to ground water from surveyed casing elevations <br /> (Table 1) <br /> After water levels were gauged, a submersible pump was used to purge each monitoring well of <br /> standing water Approximately 9 gallons of water (a minimum of 3 casing-water volumes) were <br /> removed from each well Ground water temperature, pH and conductivity were measured at regular <br /> I intervals during purging using a Hydac water analyzer Field sheets and data are included in <br /> Appendix A Purged water was stored on-site in labeled, 55-gallon DOT-approved drums <br /> I22 COLLECTION OF GROUND WATER SAMPLES <br /> Water samples were collected from each purged well using new disposable plastic bailers Each <br /> water sample was transferred into one 1-liter amber bottle without sample preservative and three <br /> 40-m1 VOA vials containing 0 5 ml 18% hydrochloric acid as a sample preservative After <br /> I <br /> Advanced Geo>;nvirnnmental,Inc <br /> I <br />